Merge pull request #2764 from chiaraani/patch-1

fix: link at mailer preview generator template

Author: JonRowe

lib/generators/rspec/mailer/templates/preview.rb

@@ -1,9 +1,9 @@
 <% module_namespacing do -%>
-# Preview all emails at http://localhost:3000/rails/mailers/<%= file_path %>
+# Preview all emails at http://localhost:3000/rails/mailers/<%= file_path %>_mailer
 class <%= class_name %><%= 'Mailer' unless class_name.end_with?('Mailer') %>Preview < ActionMailer::Preview
 <% actions.each do |action| -%>
 
-  # Preview this email at http://localhost:3000/rails/mailers/<%= file_path %>/<%= action %>
+  # Preview this email at http://localhost:3000/rails/mailers/<%= file_path %>_mailer/<%= action %>
   def <%= action %>
     <%= class_name.sub(/(Mailer)?$/, 'Mailer') %>.<%= action %>
   end